Giải câu hỏi đuôi:
1) he learned the new lessons very hard,...?
2) The doctor have rarely had a drick with each other,....?
3) Hans always wears tie when he goes out,...?
4) the cow has not anything for two days,...?
5) The questions were very difficult,....?
6) we mustn't abuse drug,...?
7) i am handsome tody,...?